Fehlercodes: E29_ECOi_MF1

Alarm Code E29
Alarm meaning Outdoor unit failed to receive communication from outdoor unit (main).
Alarm conditions Outdoor unit communications from outdoor unit (main) were interrupted for 3 minutes or longer.
Probable cause
  1. After initial communications were completed, the outdoor unit main-sub control wiring was cut.
  2. After initial communications were completed, the RC connector became disconnected.
  3. The power at the outdoor unit (main unit) is turned OFF.
Check
  1. Check the outdoor unit main-sub control wiring.
  2. Check the RC connectors.
Correction
  1. Repair the outdoor unit main-sub control wiring.
  2. Correct the RC connector connection.
  3. Turn ON the outdoor unit (main) power.
Example
Notes